Omega Speedmaster Speedmaster Professional Missions Gemini X

Reference 3597.08.00

Omega Speedmaster Professional Missions Gemini X

About this watch

The Omega Speedmaster 3597.08.00 is a masterclass in luxury watchmaking, blending technical excellence with timeless design. This limited edition timepiece, part of the illustrious Speedmaster family, boasts a sleek black dial and stainless steel case that exudes both robustness and elegance. Powered by the reliable Omega caliber 1861 movement, this hand-wound masterpiece provides excellent performance for daily wear, with a frequency of 21,600 vibrations per hour and a 48-hour power reserve. The chronograph feature is a vital part of its appeal, offering practical functionality for various activities. With only 200 units produced between January 1997 and July 1998, this watch is a rare gem that combines history, craftsmanship, and luxury.
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Key Features

  • Omega caliber 1861 movement
  • Limited edition of 200 units
  • Stainless steel case and bracelet
  • Plexi glass instead of sapphire crystal
  • Chronograph feature with small seconds, hours, and minutes counters
  • Water resistance rating of 50 meters
  • 42mm diameter and 20mm lug width

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Missions Gemini X
Reference
3597.08.00
Movement
1861
Movement Features
  • Small Seconds, Hours, Minutes
  • Chronograph
Case
Stainless Steel 42mm
Dial Color
Black
Crystal
Plexi
Water Resistance
50

Current Listings

[WTS] Omega Speedmaster Reduced, with two extra uncle bracelets

Omega Speedmaster Reduced, with two extra uncle bracelets

Omega - Speedmaster Reduced · $1,700
This Omega Speedmaster Reduced is a pre-owned watch that comes with two extra bracelets. The original bracelet and Lincoln bracelet may not fit wrists larger than 7 inches, while the US1171 bracelet has all its links.

  • Condition: Pre-owned, possibly polished case (not confirmed)
  • Bracelets included: 3
  • Bracelet sizes: [object Object]
Posted at
Feb 17, 2026, 2:32 AM
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[WTS] 2023 Omega Speedmaster "Blue Side of the Moon" Aventurine Dial - 304.93.44.52.03.002 - Full Set

2023 Omega Speedmaster "Blue Side of the Moon" Aventurine Dial - 304.93.44.52.03.002 - Full Set

Omega - 304.93.44.52.03.002 · $11,250
This Omega Speedmaster Blue Side of the Moon Aventurine features a 44.25mm blue ceramic case with Sedna gold accents, an aventurine glass dial, and Omega's Co-Axial Master Chronometer Caliber 9904 movement.

  • Condition: Very excellent preowned condition
  • Case size: 44.25mm
  • Water resistance: 50m
  • Movement: Omega Co-Axial Master Chronometer Caliber 9904 (manual wind, column-wheel chronograph, METAS certified)
Posted at
Feb 16, 2026, 10:32 PM
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[WTS] Omega Speedmaster Racing 326.30.40.50.01.002 40mm Watch + Full Set

Omega Speedmaster Racing 326.30.40.50.01.002 40mm Watch + Full Set

Omega - 326.30.40.50.01.002 · $2,950
This is a Omega Speedmaster Racing watch that has been well-maintained and comes in excellent condition. The watch features a 40mm diameter case and is accompanied by a full set of accessories.

  • Condition: Excellent
  • Purchase Year: 9 months ago
  • Previous Owner Count: 1
Posted at
Feb 16, 2026, 10:29 PM
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[WTS] 2016 OMEGA Speedmaster "Grey Side Of The Moon" 311.93.44.51.99.001 - Full Set

2016 OMEGA Speedmaster "Grey Side Of The Moon" 311.93.44.51.99.001 - Full Set

Omega - 311.93.44.51.99.001 · $7,599
This is a 2016 Omega Speedmaster Grey Side of the Moon watch featuring a sand-blasted platinum dial, grey ceramic aesthetic and a comfortable grey Omega alligator strap. It has a gorgeous sapphire domed view into the Omega co-axial calibre 9300 movement.

  • Condition: Very excellent pre-owned condition
  • Case Size: 44.25mm diameter
  • Case Material: Gray ceramic (zirconium oxide)
  • Movement: Omega Co-Axial Caliber 9300 (automatic chronograph, column-wheel, ~60-hour power reserve)
Posted at
Feb 16, 2026, 10:24 PM
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[WTS] Omega Speedmaster Moonwatch 42mm Steel Hesalite 310.30.42.50.01.001 Full Set

Omega Speedmaster Moonwatch 42mm Steel Hesalite 310.30.42.50.01.001 Full Set

Omega - 310.30.42.50.01.001 · $5,480
This Omega Speedmaster Moonwatch features a stainless steel case measuring 42mm in diameter, a black dial with Hesalite crystal, and a stainless steel bracelet.

  • Condition: Preowned with some scratches on the case, buckle, and crystal
  • Case dimensions: 42mm diameter
  • Bezel material: Stainless Steel
  • Dial color: Black
Posted at
Feb 16, 2026, 8:18 PM
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[WTS] 2021 Omega Speedmaster Moonwatch 42mm Steel Hesalite 310.30.42.50.01.001 Full Set

2021 Omega Speedmaster Moonwatch 42mm Steel Hesalite 310.30.42.50.01.001 Full Set

Omega - 310.30.42.50.01.001 · $5,675
2021 Omega Speedmaster Moonwatch 42mm Steel Hesalite, a manual wind mechanical watch featuring a stainless steel case and black dial.

  • Condition: Nice Preowned Condition with Some Scratches on the Case and Buckle.
  • Case material: Stainless Steel
  • Case dimensions: 42mm diameter
  • Bezel material: Stainless Steel
Posted at
Feb 16, 2026, 8:14 PM
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[WTS] Omega Speedmaster Racing 44.25, gray dial full kit, new in box. Inner, outer and shipping boxes, all three cards, hang tag and factory stainless bracelet with extra link. Reference number 329.30.44.51.06.001. $8000 shipped in US. New Orleans, LA

Omega Speedmaster Racing 44.25, gray dial full kit, new in box. Inner, outer and shipping boxes, all three cards, hang tag and factory stainless bracelet with extra link. Reference number 329.30.44.51.06.001. $8000 shipped in US. New Orleans, LA

Omega - 329.30.44.51.06.001 · $8,000
This Omega Speedmaster Racing features a gray dial and is sold with a full kit, including inner, outer and shipping boxes, all three cards, hang tag and factory stainless bracelet with extra link.

  • Condition: New in box
  • Country of origin: Switzerland
Posted at
Feb 16, 2026, 6:47 PM
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[WTS] Omega Speedmaster. Moonphase. Gorgeous Dial. Clean.

Omega Speedmaster. Moonphase. Gorgeous Dial. Clean.

Omega - Speedmaster Moonphase · $4,950
This Omega Speedmaster features a 42mm diameter, moonphase display, and blue hands, with very good lume. The watch runs strong and has a very crisp dial.

  • Condition: Clean, runs strong
  • Case Size: 42mm
Posted at
Feb 16, 2026, 6:27 PM
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[WTS] 20mm Horus Rubber Straps for Omega Speedmaster & Moonswatch + other brands (Well below retail)

20mm Horus Rubber Straps for Omega Speedmaster & Moonswatch + other brands (Well below retail)

· $49
Horus Rubber Straps for various brands including Omega Speedmaster and Moonswatch, designed to give a fun pop to these watches.

  • Condition: Like New
  • Material: Rubber
  • Colors: Blue Lavender,Light pink,Red,Translucent Lime Green,Sky Blue,Hot Pink
  • Compatibility: Omega Speedmaster,Moonswatch,Sinn,Zelos Swordfish,Heuer,Seamaster,IWC
Posted at
Feb 16, 2026, 6:10 PM
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